McCoy, Robert A. Practical photography / [by] Robert A. McCoy. - 3d ed. - Bloomington, Ill. : McKnight & McKnight, 1972. - xiii, 296 p. : illus. ; 24 cm. Bibliography: p. 277-280 ISBN: 0-87345-431-6 Subjects--Topical Terms: Photography--Handbooks, manuals, etc